header {
    height: 50px;
    background-color: #313131;
}
header .sp {
    float: left;
    margin-top: 10px;
    margin-left: 40px;
    font-size: 20px;
    color: #9d9992;
}
header .adm{
    float: right;
    margin-top: 10px;
    margin-right: 80px;
    font-size: 20px;
    color: #9d9992;
}
.buttom {
    height: 50px;
    background-color: #313131;
    font-size: 20px;
    color: #9d9992;
    padding-left: 40px;
    padding-top: 10px;
}


.center {
    margin: auto 0;
    padding-top: 20px;
    background-color: #ffffff;
    height: 653px;
}

.head {
    margin-left: 700px;
}
.head h1{
    margin-bottom: 10px;
}
.head .ah {
    margin-left: -30px;
}

table {
    width: 800px;
    margin: 20px auto;
    border-collapse: collapse;
    text-align: center;
}

td,
th {
    border: 1px solid #333;
    width: 80px;
}

thead tr {
    height: 40px;
    background-color: #ccc;
}

a {
    color: #666;
    text-decoration: none
}

a:hover {
    color: #c81623
}
* {
    margin: 0;
    padding: 0;
    /* css3盒子模型 */
    box-sizing: border-box;
}